An object starting from rest, moves to have an angular speed of 2 revolutions/second in a 45 second time period. What is the angular acceleration in radians per second squared. PLEASE EXPLAIN SO I CAN UNDERSTAND STEP BY STEP.
2007-05-17 10:03:25 · 1 answers · asked by damigurl05 1 in Science & Mathematics ➔ Physics
Ok so the two values you know are frequency (2 revolutions per second) and t (time or 45 seconds). It would help a lot if we knew omega (angular velocity) so we could find the angular acceleration because:
"angular acceleration = (angular velocity)/t", where t is the change in time. Note that we are assuming angular accerlation to be constant.
So, to find omega just use the formula "omega = (2)(pi)(frequency)", and plug this in to the formula above.
The answer should be 0.27925 radians per second squared.
2007-05-17 11:01:19 · answer #1 · answered by Merlin56 2 · 0⤊ 0⤋